IW JOURNAL OF THE ARNOLD ARBORETUM [vol. ii 



ba 



grossius 



subtus glaberrima, laete vel pallide viridia; petioli graciles, 1-1.8 cm. longi; 

 racemi laxi, pedunculo folia pauca et parva interdum decidua gerente in- 

 cluso 10-13 cm. longi; flores 1.4 cm.diam; pedicelU 6-13 mm. longi, graciles; 

 petala orbiculari-ovalia, manifeste eroso-denticulata: fructus parvi, pur- 

 pureo-nigri; putamen 6 mm. longum, costis elavatis brevibus a carina 

 abeuntibus notatum, in media facie fere laevi vel in No. 20078 totum fere 

 laeve. 



Cultivated at the Arnold Arboretum (raised from seed collected by F. N. Meyer 

 la northern Korea in 1906 and received from the U.S. Department of Agriculture 



May 



25 



1918 (No. 20078 [F. N. Meyer, No. 346a]). 



This new variety is nearest to P. Padus var. commutaia Dipp. and is 

 perhaps only a form of it; it differs chiefly in its loose pendulous habit, the 

 rather narrow, generally oblong-obovate, quite glabrous leaves, the elon- 

 gated lax racemes and the much smoother or nearly smooth stone. I have 

 seen no specimen of Prunus Padus neither of the European type nor of 

 any of the Asiatic forms with such a smooth stone, except perhaps Wilson's 

 No, 8946 from North Kankyo, the most northern province of Korea. The 

 two plants representing this variety in this Arboretum differ in the stone 

 which is ribbed toward the margin in No. 20082 and nearly smooth in No. 



20078, in the petals which are fringed in No. 20082 and nearly entire in 



No. 20078, and in habit which is looser and more pendulous in No. 20082. 



The other pendulous form of P. Padus, the European P. Padus f . pendula 



Hartwig, may be distinguished chiefly by its stouter branchlets, the broader 



more closely serrate leaves glaucescent beneath, the larger leaves at the 



base of the racemes, the obovate petals and by the deeply sculptured 

 stone. 



Of the other varieties of P. Padus occurring in Korea var. glauca Nakai 

 differs in the glaucous and var. pubescens Regel in the pubescent underside 



seoulensis ^ 

 fy peduncle 



Meye 



Korea were received from the Department of Agriculture, namely. No. 



Padus 



kn 



pubescens 



ARALIACEAE 



Acanthopanax tematus, sp. nov. 



Frutex bimetralis vel altior, glaber; rami patenti-erecti, satis tenues, 

 pallide cinerei vel brunneo-cinerei, sparse lenticellati, aculeis panels 4-6 mm. 

 longis validiusculis basi valde dilatatis rectis vel leviter curvatis saepissime 



eae 



acutiusculae, 1.5-2 mm. longae, brunneae. Folia decidua, petiolata, 



